World's Best Scientists 2026 revealed!
James M. Schaeffer

James M. Schaeffer

D-Index & Metrics

Biology and Biochemistry

D-Index
59
Citations
15359
World Ranking
12385
National Ranking
5302

James M. Schaeffer publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where James M. Schaeffer sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 124 publications — 14th percentile

14% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

James M. Schaeffer D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where James M. Schaeffer sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 59 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

James M. Schaeffer is a researcher affiliated with MSD in the United States, specializing in Agricultural and Biological Sciences. Their work primarily concentrates on Plant Science, with a research focus that includes Weed Control and Herbicide Applications, Allelopathy and Phytotoxic Interactions, and Botany, Ecology, and Taxonomy Studies.

Their recent scientific contribution includes the 2023 publication titled Biology, Germination Ecology, and Shade Tolerance of Alkaliweed (Cressa truxillensis) and Its Response to Common Postemergence Herbicides, published in the journal Plants. This work has attracted citations, reflecting engagement from the academic community.

James M. Schaeffer frequently collaborates with other researchers, including Kurt J. Hembree and Anil Shrestha, who have co-authored work with them.

Their publication record includes articles published in venues such as:

  • Plants

Their research topics encompass:

  • Weed Control and Herbicide Applications
  • Allelopathy and phytotoxic interactions
  • Botany, Ecology, and Taxonomy Studies

Main and subfields of study associated with their work include:

  • Agricultural and Biological Sciences
  • Plant Science

Best Publications

  • A Receptor in Pituitary and Hypothalamus That Functions in Growth Hormone Release

    Andrew D. Howard;Scott D. Feighner;Doris F. Cully;Joseph P. Arena

  • Immunolocalization of estrogen receptor β in the mouse brain: Comparison with estrogen receptor α

    Sudha Warrier Mitra;Elena Hoskin;Joel Yudkovitz;Lisset Pear

  • Cloning of an avermectin-sensitive glutamate-gated chloride channel from Caenorhabditis elegans

    Doris F. Cully;Demetrios K. Vassilatis;Ken K. Liu;Philip S. Paress

  • Regulation of vascular endothelial growth factor-dependent retinal neovascularization by insulin-like growth factor-1 receptor.

    Lois E. H. Smith;Wei Shen;Carole Perruzzi;Shay Soker

  • Rapid Identification of Subtype-Selective Agonists of the Somatostatin Receptor Through Combinatorial Chemistry

    Susan P. Rohrer;Elizabeth T. Birzin;Ralph T. Mosley;Scott C. Berk

  • Essential Role of Growth Hormone in Ischemia-Induced Retinal Neovascularization

    Lois E. H. Smith;Lois E. H. Smith;Lois E. H. Smith;John J. Kopchick;John J. Kopchick;John J. Kopchick;Wen Chen;Wen Chen;Wen Chen;Joanne Knapp;Joanne Knapp;Joanne Knapp

  • 11β-HSD1 inhibition ameliorates metabolic syndrome and prevents progression of atherosclerosis in mice

    Anne Hermanowski-Vosatka;James M. Balkovec;Kang Cheng;Howard Y. Chen

  • Somatostatin inhibits insulin and glucagon secretion via two receptors subtypes: an in vitro study of pancreatic islets from somatostatin receptor 2 knockout mice.

    M. Z. Strowski;R. M. Parmar;A. D. Blake;J. M. Schaeffer

  • On the possibility of liquid water on present‐day Mars

    Robert M. Haberle;Christopher P. McKay;James Schaeffer;Nathalie A. Cabrol

  • Identification of a Drosophila melanogaster Glutamate-gated Chloride Channel Sensitive to the Antiparasitic Agent Avermectin

    Doris F. Cully;Philip S. Paress;Ken K. Liu;James M. Schaeffer

  • General circulation model simulations of the Mars Pathfinder atmospheric structure investigation/meteorology data

    Robert M. Haberle;Manoj M. Joshi;James R. Murphy;Jeffrey R. Barnes

  • The mechanism of action of avermectins in Caenorhabditis elegans: correlation between activation of glutamate-sensitive chloride current, membrane binding, and biological activity.

    Joseph P. Arena;Ken K. Liu;Philip S. Paress;Easter G. Frazier

  • Mode of Action of Ivermectin

    M. J. Turner;J. M. Schaeffer

  • Nuclear Receptors Have Distinct Affinities for Coactivators: Characterization by Fluorescence Resonance Energy Transfer

    Gaochao Zhou;Richard Cummings;Ying Li;Sudha Mitra

  • 17β-Estradiol-induced antidepressant-like effect in the Forced Swim Test is absent in estrogen receptor-β knockout (BERKO) mice

    Beatriz A Rocha;Rebecca Fleischer;James M Schaeffer;Susan P Rohrer

  • Mars atmospheric dynamics as simulated by the NASA Ames General Circulation Model: 2. Transient baroclinic eddies

    Jeffrey R. Barnes;James B. Pollack;Robert M. Haberle;Conway B. Leovy

  • Somatostatin receptor subtype 2 knockout mice are refractory to growth hormone-negative feedback on arcuate neurons.

    Hui Zheng;Alex Bailey;Ming-Hao Jiang;Kazufumi Honda

  • Expression of a glutamate-activated chloride current in Xenopus oocytes injected with Caenorhabditis elegans RNA: evidence for modulation by avermectin.

    Joseph P. Arena;Ken K. Liu;Philip S. Paress;James M. Schaeffer

  • Synthesis and biological activities of potent peptidomimetics selective for somatostatin receptor subtype 2

    Lihu Yang;Scott C. Berk;Susan P. Rohrer;Ralph T. Mosley

  • High basal gastric acid secretion in somatostatin receptor subtype 2 knockout mice

    Vicente Martinez;Annette P. Curi;Behrooz Torkian;James M. Schaeffer

Frequent Co-Authors

Roy G. Smith
Roy G. Smith Scripps Research Institute
Arthur A. Patchett
Arthur A. Patchett MSD (United States)
Aaron J. W. Hsueh
Aaron J. W. Hsueh Stanford University
Robert M. Haberle
Robert M. Haberle Ames Research Center
Lex H.T. Van der Ploeg
Lex H.T. Van der Ploeg MSD (United States)
Michael H. Fisher
Michael H. Fisher MSD (United States)
Kevin T. Chapman
Kevin T. Chapman MSD (United States)
Andrew D. Howard
Andrew D. Howard MSD (United States)
Lois E. H. Smith
Lois E. H. Smith Boston Children's Hospital
James B. Pollack
James B. Pollack Ames Research Center

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